ET-A18
16-Channel Analog Multiplexer
Read 16 analog or digital signals with one pin
AED 17.00
Out of stock✓ TestedEvery board is checked before it ships
🚚 Fast shippingUAE 1–3 days · GCC & worldwide
💬 Engineer supportQuestions answered by the designers
Overview
Read 16 analog or digital signals with one pin
The ET-A18 is built around the TI CD74HC4067 — 16:1 bidirectional analog switch, 70Ω Ron, signals 0–VCC. It runs from 2–6V.
Designed in Dubai by ElectroTrical — the full schematic, BOM and design notes are published below.
Good for
- Many potentiometers or sensors
- MIDI controllers
- Button matrices
Key features
What makes it different
IC
TI CD74HC4067: 16:1 bidirectional analog switch, 70Ω Ron, signals 0–VCC
Use
16 pots/sensors on one ADC pin, button matrices, signal routing
Supply
2–6V
Libraries
CD74HC4067 (Arduino), plain digitalWrite on S0–S3
Open documentation
Schematic, BOM and layout notes published for every board.
Breadboard friendly
Standard 2.54 mm pitch and M2.5 mounting holes.
Specifications
Technical specifications
| IC | TI CD74HC4067: 16:1 bidirectional analog switch, 70Ω Ron, signals 0–VCC |
|---|---|
| Use | 16 pots/sensors on one ADC pin, button matrices, signal routing |
| Supply | 2–6V |
| Size | 40.6 × 20.3 mm |
|---|---|
| Mounting | 2 mounting holes (M2.5) |
| Connectors | 8-pin 2.54 mm header |
| Main IC | CD74HC4067M96 (LCSC C496123) |
| Revision | Rev A |
| Libraries | CD74HC4067 (Arduino), plain digitalWrite on S0–S3 |
|---|
Performance
Channels
Pinout
Pin map and connections
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | VCC | Power | 2–6V |
| 2 | GND | Ground | Ground |
| 3 | SIG | Control | Common I/O → ADC or GPIO |
| 4 | S0 | Signal | S0 |
| 5 | S1 | Signal | S1 |
| 6 | S2 | Signal | S2 |
| 7 | S3 | Signal | S3 |
| 8 | EN | Control | Active low, pulled low |
Mechanical
Dimensions and what's in the box
In the box
- 1 × ET-A18 16-Channel Analog Multiplexer (assembled)
- 1 × 8-pin 2.54 mm male header, unsoldered
Getting started
- Wire the header: VCC, GND, SIG, S0, S1, S2
- Libraries: CD74HC4067 (Arduino), plain digitalWrite on S0–S3
Compare
Which input board?
| 16-Channel Analog Multiplexer (this board)This board | ET-A15 Rotary Encoder Breakout | ET-A20 4-Button Pad | |
|---|---|---|---|
| What it does | Read 16 analog or digital signals with one pin | EC11 encoder with push switch and hardware debounce | Four debounced tactile buttons in a D-pad layout |
| Interface | — | 3 GPIO (interrupt-capable recommended) | — |
| Best for | Many potentiometers or sensors | Menu navigation | Menus and games |
| Price | 17 AED | 15 AED | 9 AED |
Downloads
Documents and design files
Need a custom version of this board?
Different connector, size or sensor? We design and build custom variants.